This will need a kernel higher than 2.6.10!
(note that upgrading Arch 0.7 with pacman -Su will break the system unless the DevFS->Udev transition is made after the install, see guidelines here: http://bbs.archlinux.org/viewtopic.php?t=15585)

Requires a "kill switch" module that turns the wireless card radio on..
get fsam7400 module (0.4.0) from http://linux.zwobbl.de/pub/
unpack and install with make, make install. Don't need to add it to the loaded modules in /etc/rc.conf.

add the following to /etc.rc.local to automate wireless connection (thanks to nahoj1976):